Replicated List

List in custom node returns a replicated list of values.

I have a custom node to extract specific parameters from a revit project. Some how the list of Strings specifying the parameters to extract is getting replicated based on the number of input elements. Seams like it may be related to lacing but that does not affect it. It only appears to happen when utilized with in a custom node.

your input type is an element, so its replicating that function (custom node) over the input list, try making area_elements typed as a list of elements… syntax should be like

yourInput: element[]

@Michael_Kirschner perfect answer, learning to remember to little things.